http://communities.vmware.com/message/1286580#1286580
http://www.ivobeerens.nl/?p=256
http://www.configuresoft.com/esx-compliance-checker.aspx
http://www.vmware.com/support/developer/vima/
http://www.run-virtual.com/?p=233 (VMware CPU Host Info)
http://teckinfo.blogspot.com/2009/01/vdiagram-document-your-vi-with-one.html (vDiagram)
You forgot to mention the vReport and vDiagram actions in the Virtualization EcoShell.